Chapters are a means of providing direct and semantically relevant navigation points for a media file. On particular use case are so-called http://en.wikipedia.org/wiki/Enhanced_podcast "enhanced podcasts"], i.e. audio files with additional chapter markers.

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Chapters are a means of providing direct and semantically relevant navigation points for a media file. On particular use case are so-called [http://en.wikipedia.org/wiki/Enhanced_podcast "enhanced podcasts"], i.e. audio files with additional chapter markers.

Chapters are typically provided for a recorded file, not for a live resource.

Chapters are typically provided for a recorded file, not for a live resource.

Revision as of 11:54, 5 March 2012

Chapters are a means of providing direct and semantically relevant navigation points for a media file. On particular use case are so-called "enhanced podcasts", i.e. audio files with additional chapter markers.

Chapters are typically provided for a recorded file, not for a live resource.

Since chapters are used for navigation - in particular to avoid having to listen to large amounts of undesired content in order to get to desired content - it is important that the information about chapters is available at the start of a media file to be able to be displayed without having to decode the media file. Therefore, we regard chapters as header-style metadata.

We therefore propose an extensions to VorbisComment for transporting chapters. We introduce VorbisComment fields called CHAPTERxxx and CHAPTERxxxNAME with xxx being a number between 000 and 999. We assume 1000 chapters to be sufficient.